buffer: remove MAX_SAFE_INTEGER check on length

MAX_SAFE_INTEGER is millions of times larger than the largest buffer allowed in Node.js. There is no need to squash the length down to MAX_SAFE_INTEGER. Removing that check results in a small but statistically significant increase for Buffer.from() operating on ArrayBuffers in some situations. PR-URL: #14131 Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Refael Ackermann <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Gibson Fahnestock <[email protected]>

Author: Trott

lib/buffer.js

@@ -353,8 +353,6 @@ function fromArrayBuffer(obj, byteOffset, length){
 if(length!==length){
 length=0;
 }elseif(length>0){
-length=(length<Number.MAX_SAFE_INTEGER ?
-length : Number.MAX_SAFE_INTEGER);
 if(length>maxLength)
 thrownewRangeError("'length' is out of bounds");
 }else{